Chemical symbols and atomic numbers
Matter and atoms
Lexi and Antonia are awesome
Penguins
Challenging
100
Aluminum's atomic number is
What is 13
100
Positively charged atoms are called
What is protons
100
Protons and neutrons are made up of tiny particles called what
What is quarks
200
Cesiums atomic number is
What is 55
200
Negatively charged particles are called
What is electrons
200
Atoms of the same element that have different numbers of neutrons are called what
What is isotopes
200
Have properties of both metals and non metals
What is Metalloid
300
The chemical symbol for mercury is
What is Hg
300
Neutrally charged particles are called
What is neutrons
300
The sum of the number of protons and the numbers of neutrons in the nucleus of an atom are called what
What is mass number
300
There are how many electrons in the 3rd energy level?
What is 18
300
An abbreviated way to write the name of an element
Welement helical symbol
400
Leads chemical symbol is
What is Pb
400
Atoms are the basic building blocks of what
What is matter
400
The average mass of the mixture of it isotopes is called what
What is average atomic mass
400
Is a lead a metal metalloid or nonmetal
What is metal
400
The region formed by electrons is what
What is electron cloud
500
Franciums atomic number is
What is 87
500
Because a neutron is neutral it is not what
What is charged
500
This is the number of protons in a atoms nucleus
What is atomic number
500
Is helium a gas liquid or solid
What is gas
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